For sub-paragraphs (a) and (b) of paragraph (5) of regulation 12 of the principal regulations substitute—
(a) a scheme provided to him under Government arrangements that are not specified in paragraph (3)(b),
(b) a scheme provided to him under Government arrangements that are specified in paragraph (3)(b), unless the person is a worker within the meaning given by section 54(3) of the Act by virtue of his participation in the scheme, or
(c) a scheme, not being one provided to him under Government arrangements, funded in whole or in part under the European Social Fund,